P-Trap Plumbing Diagram - Function, Design & Installation Guide #212249 (License: Personal Use)

This schematic illustrates a classic P-trap-a U-shaped section of drainpipe installed beneath sinks and other fixtures. The trap retains a small amount of water in its bend, creating a liquid seal that blocks sewer gases while allowing wastewater to flow freely. Joints and connectors shown indicate typical PVC or metal fittings used in residential plumbing.

Used on plumbing educational pages, DIY repair guides, or product spec sheets for sink drains; matches user intent to understand or install a P-trap for odor prevention and code compliance.